Structural role of essential light chains in the apicomplexan glideosome.

Pazicky S, Dhamotharan K, Kaszuba K, Mertens HDT, Gilberger T, Svergun D, Kosinski J, Weininger U, Löw C, Commun Biol 3(1):568 (2020) Europe PMC

SASDHE4 – Trimeric complex of myosin A with myosin tail interacting protein (MTIP, residues 60-204) and essential light chain (PfELC) from Plasmodium falciparum

Myosin essential light chain
Plasmodium falciparum myosin A
Myosin A tail domain interacting protein
MWexperimental 35 kDa
MWexpected 37 kDa
VPorod 51 nm3
log I(s) 3.70×10-2 3.70×10-3 3.70×10-4 3.70×10-5
Myosin essential light chain Plasmodium falciparum myosin A Myosin A tail domain interacting protein small angle scattering data  s, nm-1
ln I(s)
Myosin essential light chain Plasmodium falciparum myosin A Myosin A tail domain interacting protein Guinier plot ln 3.70×10-2 Rg: 2.7 nm 0 (2.7 nm)-2 s2
(sRg)2I(s)/I(0)
Myosin essential light chain Plasmodium falciparum myosin A Myosin A tail domain interacting protein Kratky plot 1.104 0 3 sRg
p(r)
Myosin essential light chain Plasmodium falciparum myosin A Myosin A tail domain interacting protein pair distance distribution function Rg: 2.8 nm 0 Dmax: 10.7 nm

Data validation


There are no models related to this curve.

Synchrotron SAXS data from solutions of the trimeric complex between myosin A, the myosin tail interacting protein (MTIP, residues 60-204) and the essential light chain (PfELC) from Plasmodium falciparum in 20 mM HEPES pH 7.5, 150 mM NaCl, 0.5 mM TCEP were collected on the EMBL P12 beam line at the PETRA III storage ring (Hamburg, Germany) using a Pilatus 6M detector at a sample-detector distance of 3 m and at a wavelength of λ = 0.124 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 90.00 μl sample at 8.2 mg/ml was injected at a 0.80 ml/min flow rate onto a GE Superdex 200 Increase 10/300 column at 20°C. 1500 successive 0.995 second frames were collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Myosin essential light chain (ELC)
Mol. type   Protein
Organism   Plasmodium falciparum
Olig. state   Monomer
Mon. MW   15.8 kDa
 
UniProt   Q8IJM4 (1-134)
Sequence   FASTA
 
Plasmodium falciparum myosin A (PfMyoA)
Mol. type   Protein
Organism   Plasmodium falciparum
Olig. state   Monomer
Mon. MW   4.9 kDa
 
UniProt   Q8IDR3 (775-816)
Sequence   FASTA
 
Myosin A tail domain interacting protein (MTIP)
Mol. type   Protein
Organism   Plasmodium falciparum
Olig. state   Monomer
Mon. MW   16.8 kDa
 
UniProt   Q8I4W8 (60-204)
Sequence   FASTA